Torf,
I stumbled across the same thing and modified my local repository copy. I
don't know if this was the correct way for libcloud proper, but it moved me
past the point where I was stuck. (There may be other places that need it,
but for the APIs I'm using they're sufficient.) You'll also need to do "$
pip3 install lockfile" to use the LocalStorage driver.
diff -r a61cf0eec1a7 -r ad3deb3173ce libcloud/storage/drivers/local.py
--- a/libcloud/storage/drivers/local.py Wed Jun 25 18:59:43 2014 -0500
+++ b/libcloud/storage/drivers/local.py Wed Jun 25 19:03:33 2014 -0500
@@ -406,7 +406,7 @@
path = self.get_object_cdn_url(obj)
- with open(path) as obj_file:
+ with open(path, 'rb') as obj_file:
for data in read_in_chunks(obj_file, chunk_size=chunk_size):
yield data
@@ -490,7 +490,7 @@
self._make_path(base_path)
with LockLocalStorage(obj_path):
- obj_file = open(obj_path, 'w')
+ obj_file = open(obj_path, 'wb')
for data in iterator:
obj_file.write(data)
As for the upload, here's how I call it:
obj = driver.upload_object_via_stream (
BytesIO (data), container, objname,
extra={'content_type': 'application/octet-stream'})
Again, I don't know if this is libcloud proper or not; it works for me!
(Ship it!)
HTH,
Chris
On Mon, Jul 20, 2015 at 4:43 PM, Torf <[email protected]> wrote:
> Hi,
>
> I'm trying to store binary data in Python 3 to a ``LocalStorageDriver``
> instance. If I upload data via ``upload_object`` from a file on disk and
> then use ``download_object_as_stream`` I get a stream of bytes, as
> expected. However, uploading a stream of bytes manually using
> ``upload_object_via_stream`` fails:
>
>
> >>> container.upload_object_via_stream(io.BytesIO(b'foobar'), 'key')
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File
>
> "/home/torf/projects/coba/venv/lib/python3.4/site-packages/libcloud/storage/base.py",
> line 157, in upload_object_via_stream
> iterator, self, object_name, extra=extra, **kwargs)
> File
>
> "/home/torf/projects/coba/venv/lib/python3.4/site-packages/libcloud/storage/drivers/local.py",
> line 497, in upload_object_via_stream
> obj_file.close()
> File
>
> "/home/torf/projects/coba/venv/lib/python3.4/site-packages/libcloud/storage/drivers/local.py",
> line 69, in __exit__
> raise value
> File
>
> "/home/torf/projects/coba/venv/lib/python3.4/site-packages/libcloud/storage/drivers/local.py",
> line 495, in upload_object_via_stream
> obj_file.write(data)
> TypeError: must be str, not bytes
>
>
> The problem seems to be that ``LocalStorageDriver`` opens the target
> file for writing in text mode ('w') instead of binary mode ('wb').
>
> I couldn't find any information on whether keys and values are supposed
> to be (Unicode) strings or bytes (or both), so I am not sure whether
> this is a bug in ``LocalStorageDriver`` or a misunderstanding on my side.
>
> This is on Python 3.4 and LibCloud 0.17.0.
>
>
> Regards,
> Torf
>
